No. 5731-10/23

LC74788, 74788M, 74788JM

COMMAND1 (Display character data write setup command)

• First byte

DA

Register

Contents

Notes

0 to 7

State

Function

7

—

1

6

—

0

Command 1 identification code.

5

—

0

Sets up display character data write mode.

4

—

1

3

—

0

2

—

0

1

—

0

0

at

0

Character attribute off

1

Character attribute on

When this command is input, the LC74788/M/JM

locks in the display character data write mode until

the CS pin goes high

• Second byte

DA

Register

Contents

Notes

0 to 7

State

Function

7

c7

0

1

6

c6

0

1

5

c5

0

1

Character code (00 to 7F hexadecimal)

4

c4

0

1

(FE (hex): spacing character)

3

c3

0

(FF (hex): transparent spacing character)

1

2

c2

0

1

1

c1

0

1

0

c0

0

1

Note: All registers are set to 0 when the LC74788/M/JM is reset by the RST pin.